75555117 has 12 divisors (see below), whose sum is σ = 119056704. Its totient is φ = 45790920.

The previous prime is 75555113. The next prime is 75555131. The reversal of 75555117 is 71155557.

It is not a de Polignac number, because 75555117 - 2² = 75555113 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75555113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381493 + ... + 381690.

It is an arithmetic number, because the mean of its divisors is an integer number (9921392).

Almost surely, 2^75555117 is an apocalyptic number.

It is an amenable number.

75555117 is a deficient number, since it is larger than the sum of its proper divisors (43501587).

75555117 is a wasteful number, since it uses less digits than its factorization.

75555117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763200 (or 763197 counting only the distinct ones).

The product of its digits is 30625, while the sum is 36.

The square root of 75555117 is about 8692.2446468102. The cubic root of 75555117 is about 422.7542290760.

The spelling of 75555117 in words is "seventy-five million, five hundred fifty-five thousand, one hundred seventeen".